first of all you can go for masters program in criminology from india or abroad, there are many colleges in india who offer msc or MA in criminology, after these courses there are career  options like-

you can make your career as a crime investigator, counsellor, medical investigator, social worker, rehabilitation specialist, policy maker, or join the police forces and law enforcement agencies.

you can explore possibilities with organizations like the Central Bureau of Investigation (CBI), Research & Analysis Wing (RAW), National Human Rights Commission (NHRC), National Commission for Women (NCW), National Commission for Protection of Child Rights (NCPCR), and Bureau of Police Research & Development (BPR&D).